// Copyright (c) .NET Foundation. All rights reserved.
// Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.

using System;
using System.Net.Http;
using BasicWebSite.Services;
using Microsoft.AspNetCore.Authentication;
using Microsoft.AspNetCore.Authorization;
using Microsoft.AspNetCore.Builder;
using Microsoft.AspNetCore.Http;
using Microsoft.AspNetCore.Mvc;
using Microsoft.AspNetCore.Mvc.Abstractions;
using Microsoft.AspNetCore.Mvc.Infrastructure;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.DependencyInjection.Extensions;

namespace BasicWebSite
{
    public class StartupWithoutEndpointRouting
    {
        // Set up application services
        public void ConfigureServices(IServiceCollection services)
        {
            services.AddSingleton(new TestService { Message = "true" });

            services.AddAuthentication()
                .AddScheme<AuthenticationSchemeOptions, BasicAuthenticationHandler>("Api", _ => { });
            services.AddTransient<IAuthorizationHandler, ManagerHandler>();

            services
                .AddMvc(options =>
                {
                    options.Conventions.Add(new ApplicationDescription("This is a basic website."));
                    // Filter that records a value in HttpContext.Items
                    options.Filters.Add(new TraceResourceFilter());

                    options.EnableEndpointRouting = false;
                })
                .AddNewtonsoftJson()
                .AddXmlDataContractSerializerFormatters();

            services.ConfigureBaseWebSiteAuthPolicies();

            services.AddTransient<IAuthorizationHandler, ManagerHandler>();

            services.AddLogging();
            services.AddSingleton<IActionDescriptorProvider, ActionDescriptorCreationCounter>();
            services.AddHttpContextAccessor();
            services.AddSingleton<ContactsRepository>();
            services.AddScoped<RequestIdService>();
            services.AddTransient<ServiceActionFilter>();
            services.AddScoped<TestResponseGenerator>();
            services.AddSingleton<IActionContextAccessor, ActionContextAccessor>();
            services.TryAddSingleton(CreateWeatherForecastService);
        }

        // For manual debug only (running this test site with F5)
        // This needs to be changed to match the site host
        private WeatherForecastService CreateWeatherForecastService(IServiceProvider serviceProvider)
        {
            var contextAccessor = serviceProvider.GetRequiredService<IHttpContextAccessor>();
            var httpContext = contextAccessor.HttpContext;
            if (httpContext == null)
            {
                throw new InvalidOperationException("Needs a request context!");
            }
            var client = new HttpClient();
            client.BaseAddress = new Uri($"{httpContext.Request.Scheme}://{httpContext.Request.Host}");
            return new WeatherForecastService(client);
        }

        public void Configure(IApplicationBuilder app)
        {
            app.UseDeveloperExceptionPage();

            app.UseStaticFiles();

            // Initializes the RequestId service for each request
            app.UseMiddleware<RequestIdMiddleware>();

            // Add MVC to the request pipeline
            app.UseMvc(routes =>
            {
                routes.MapRoute(
                    "areaRoute",
                    "{area:exists}/{controller}/{action}",
                    new { controller = "Home", action = "Index" });

                routes.MapRoute("ActionAsMethod", "{controller}/{action}",
                    defaults: new { controller = "Home", action = "Index" });

                routes.MapRoute("PageRoute", "{controller}/{action}/{page}");
            });
        }
    }
}
